CN105211059A - A kind of kiwi fruit composition pesticide containing natural active products and preparation method thereof - Google Patents

Abstract

The invention discloses a kind of kiwi fruit composition pesticide containing natural active products and preparation method thereof, it is characterized in that, be made up of the raw material of following weight portion: the fruit of a cubeb litsea tree, n-hexane, 95 ~ 98% the concentrated sulfuric acid, light calcium carbonate fine powder, gemma bacillus agent, wood tar, chlorine pyrazothion, Imidacloprid, cyclodextrin and appropriate water; Pollute low, action effect is good, the rough surface active ingredient utilizing the fruit of a cubeb litsea tree to extract, add wood tar and cyclodextrin etc., make a kind of uniform gelatinization emulsion, finally add precipitated calcium carbonate particulate and agricultural chemicals main part, after particulate absorption farm chemical ingredients, uniformly dispersing is in emulsion, emulsion plays good preservation effect in agricultural chemicals storage life, make not stick between each composition, do not precipitate, do not lump, finally in use play good surface-active action, the generation of at utmost pre-preventing disease and pest.

Description

A kind of kiwi fruit composition pesticide containing natural active products and preparation method thereof

Technical field

The invention belongs to the technology field of agricultural chemicals, be specifically related to a kind of kiwi fruit composition pesticide containing natural active products and preparation method thereof.

Background technology

In recent years, China uses 1,000,000 tons, agricultural chemicals control area to reach the crops of more than 300,000,000 hectares every year, plant protection service is that agricultural foison has made tremendous contribution, serve the effect escort, but due to the operation technique of agricultural chemicals and the research wretched insufficiency of technical measures, ignore target organisms behavioral study and generally adopt Large Copacity, the reasons such as large droplet spray technique, China's pesticide efficacy is low, the agricultural chemicals shed by spraying equipment only has 20 ~ 30% can be deposited on crop, be equivalent to the average level of developed country 50%, poor efficiency in Pesticide use, not only waste a large amount of agricultural chemicals, a large amount of pesticidal preparations is also made to be lost in non-target environment, cause person poultry poisoning, environmental pollution, Practice for Pesticide Residue in Agricultural Products amount increases.

The poor efficiency of Pesticide use also has much relations with pesticide processing technical research deficiency, China has become pesticide producing big country, but domestic preparation, the research of formulation and the quality of product compared with abroad appoint there is a big difference, main manifestations is that dispersive property is poor, suspensibility is low, the aspects such as heat storage resolution ratio is high, some formulations are because of wettability, the reasons such as permeability and blade face deposition difference cause drug effect unstable, be equivalent to a part of kind and be obviously worse than same kind of products at abroad in resistance of rainwater washing against and viscosity etc., as domestic pesticide suspension concentrate ubiquity bleed, multiviscosisty, deposition, the problems such as the bin stabilities such as caking.Occur the main cause of this phenomenon except the kind quality and quantity with China agricultural chemicals medicinal surfactant compared with developed countries gap greatly except, also not enough etc. relevant with action of agricultural chemicals study mechanism to just surface-active agent with us.

Summary of the invention

In order to alleviate Pesticidal products bad dispersibility, suspensibility is low, and degraded slowly, the problems such as residual height, the present invention adds a kind of bioactive surface reactive material by modification, improves the result of use of pesticidal preparations, lower Pesticide use frequency, realize particular by following methods:

A kind of kiwi fruit composition pesticide containing natural active products, it is characterized in that, be made up of the raw material of following weight portion: the concentrated sulfuric acid 2 ~ 4 of the fruit of a cubeb litsea tree 10 ~ 15, n-hexane 1.5 ~ 3,95 ~ 98%, light calcium carbonate fine powder 4 ~ 7, gemma bacillus agent 2 ~ 5, wood tar 3 ~ 6, chlorine pyrazothion 4 ~ 8, Imidacloprid 8 ~ 10, cyclodextrin 1 ~ 2 and appropriate water;

A preparation method for kiwi fruit composition pesticide containing natural active products, is characterized in that, comprise following step:

(1) fruit of a cubeb litsea tree is pulverized through preliminary, then add the water of 2 ~ 3 times of its weight portions, add n-hexane, decoct 2 ~ 2.5h, the cooking liquor of filtration, continue heating 2 ~ 3h and concentrate, finally add 95 ~ 98% concentrated sulfuric acids, be heated to 80 ~ 90 DEG C, after insulated and stirred 15 ~ 30min, obtain extract;

(2) mix wood tar, cyclodextrin and (1) gained extract, add the water that total amount is equal, be heated to 80 ~ 90 DEG C, with under 600 ~ 800r/min high shear agitation conditions, effect 30 ~ 40min obtains gelatinization and obtains dilute emulsion;

(3) mix gemma bacillus agent, Imidacloprid and other residual components, add in the rare emulsion described in (2), control temperature 35 ~ 55 DEG C, in the reactor of 200 ~ 250r/min, stir 1 ~ 2.5h carry out composite, after completing.

Litsea cubeba oil mainly concentrates in pericarp, and the residue main component after pulverizing is fruit of a cubeb litsea tree kernel, and in these kernels, containing natural grease, crude protein, raw fiber and the material such as calcium, phosphorus, wherein natural oil reaches 25 ~ 28%.The present invention obtains a certain amount of natural surface reactive material by decoction-pulverizing-squeezing-rough acid refining, wherein in the process decocted, add a certain amount of organic solvent-normal hexane, accelerate the speed of stripping grease and improve extraction efficiency, a certain amount of concentrated sulfuric acid is added after completing, add the acid refining of stirring and carrying out litsea cubeba kernel oil, containing various surface reactive material in products therefrom, as lauric acid Sulfates, metal carboxylate, the a series of surface reactive material such as alkanolamide, alkanolamide wherein has stronger anti-hydrolytic performance, there is significant foam enhancing, steady bubble, the effects such as thickening.

Utilize the surface reactive material of fruit of a cubeb litsea tree extracting natural, reduce the use of chemically reactive substance, reduce the use of the non-renewable energies such as oil, use the surfactant that chemistry refines simultaneously, more or less introduce unnecessary impurity, contaminated environment, after adding the surface reactive material of natural extraction, significantly can accelerate the contact of agricultural chemicals and the wax coat page, significantly stick together on blade simultaneously, retention time is more of a specified duration, and vermins-proof effect is more obvious, reduces the usage amount from agricultural chemicals from the side.

Beneficial effect of the present invention: this is a kind of kiwi fruit plantation environment-friendly type fertilizer of emulsion-type, pollute low, action effect is good, the rough surface active ingredient utilizing the fruit of a cubeb litsea tree to extract, add wood tar and cyclodextrin etc., make a kind of uniform gelatinization emulsion, finally add precipitated calcium carbonate particulate and agricultural chemicals main part, after particulate absorption farm chemical ingredients, uniformly dispersing is in emulsion, emulsion plays good preservation effect in agricultural chemicals storage life, make not stick between each composition, do not precipitate, do not lump, finally in use play good surface-active action, the generation of at utmost pre-preventing disease and pest.

Embodiment

Embodiment 1:

A kind of kiwi fruit composition pesticide containing natural active products, it is characterized in that, be made up of the raw material of following weight portion (Kg): the concentrated sulfuric acid 2 of the fruit of a cubeb litsea tree 15, n-hexane 1.5,95 ~ 98%, light calcium carbonate fine powder 4, gemma bacillus agent 4, wood tar 3, chlorine pyrazothion 6, Imidacloprid 10, cyclodextrin 1 and appropriate water;

A preparation method for kiwi fruit composition pesticide containing natural active products, is characterized in that, comprise following step:

(1) fruit of a cubeb litsea tree is pulverized through preliminary, then add the water of 2 ~ 3 times of its weight portions, add n-hexane, decoct 2 ~ 2.5h, the cooking liquor of filtration, continue heating 2 ~ 3h and concentrate, finally add 95 ~ 98% concentrated sulfuric acids, be heated to 80 ~ 90 DEG C, after insulated and stirred 15 ~ 30min, obtain extract;

(2) mix wood tar, cyclodextrin and (1) gained extract, add the water that total amount is equal, be heated to 80 ~ 90 DEG C, with under 600 ~ 800r/min high shear agitation conditions, effect 30 ~ 40min obtains gelatinization and obtains dilute emulsion;

(3) mix gemma bacillus agent, Imidacloprid and other residual components, add in the rare emulsion described in (2), control temperature 35 ~ 55 DEG C, in the reactor of 200 ~ 250r/min, stir 1 ~ 2.5h carry out composite, after completing.

A kind of kiwi fruit composition pesticide containing natural active products of the present invention is used for the extermination of disease and insect pest of kiwi fruit; by the medicament of invention; add the water dilution of 800 ~ 1000 times; then be evenly sprayed on kiwi fruit blade with the form of spraying; result proves: agricultural chemicals is convenient in storage, and vermins-proof effect is good, and the duration is long; after detecting, the residual quantity of agricultural chemicals is less, protection of the environment.

Claims (2)

1. the kiwi fruit composition pesticide containing natural active products, it is characterized in that, be made up of the raw material of following weight portion: the concentrated sulfuric acid 2 ~ 4 of the fruit of a cubeb litsea tree 10 ~ 15, n-hexane 1.5 ~ 3,95 ~ 98%, light calcium carbonate fine powder 4 ~ 7, gemma bacillus agent 2 ~ 5, wood tar 3 ~ 6, chlorine pyrazothion 4 ~ 8, Imidacloprid 8 ~ 10, cyclodextrin 1 ~ 2 and appropriate water.

2. the preparation method of a kind of kiwi fruit composition pesticide containing natural active products according to claim 1, is characterized in that, comprise following step:

(1) fruit of a cubeb litsea tree is pulverized through preliminary, then add the water of 2 ~ 3 times of its weight portions, add n-hexane, decoct 2 ~ 2.5h, the cooking liquor of filtration, continue heating 2 ~ 3h and concentrate, finally add 95 ~ 98% concentrated sulfuric acids, be heated to 80 ~ 90 DEG C, after insulated and stirred 15 ~ 30min, obtain extract;

(2) mix wood tar, cyclodextrin and (1) gained extract, add the water that total amount is equal, be heated to 80 ~ 90 DEG C, with under 600 ~ 800r/min high shear agitation conditions, effect 30 ~ 40min obtains gelatinization and obtains dilute emulsion;

(3) mix gemma bacillus agent, Imidacloprid and other residual components, add in the rare emulsion described in (2), control temperature 35 ~ 55 DEG C, in the reactor of 200 ~ 250r/min, stir 1 ~ 2.5h carry out composite, after completing.